Home / 42,145.54-58,172.44-26,220.50

Finding the Fourth Proportional to 42,145.54, 58,172.44 and 26,220.50

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Solution

The fourth proportional to 42,145.54, 58,172.44 and 26,220.50 is: 36,191.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,145.54 : 58,172.44 = 26,220.50 : x
  2. Step 2: Convert to fraction form
    42,145.54/58,172.44 = 26,220.50/x
  3. Step 3: Cross multiply
    42,145.54x = 58,172.44 × 26,220.50
  4. Step 4: Simplify right side
    42,145.54x = 1,525,310,463.02
  5. Step 5: Solve for x
    x = 1,525,310,463.02/42,145.54
  6. Step 6: Final answer
    x = 36,191.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.